| 摘要 |
A photochromic composition, a high refractive index optical lens prepared by using the composition, and an optical product containing the optical lens are provided to improve refractive index, Abbe's number and weather resistance and to enhance rimless glasses processability. A photochromic composition comprises 100 parts by weight of a (meth)acrylate compound represented by the formula 1; 15-60 parts by weight of a (meth)acrylate compound represented by the formula 2; 20-40 parts by weight of a (meth)acrylate compound containing sulfur represented by the formula 3; 20-45 parts by weight of a compound represented by the formula 4; 2-11 parts by weight of a compound represented by the formula 5; 15-25 parts by weight of a bifunctional (meth)acrylate compound represented by the formula 6; and 2-10 parts by weight of a storage stabilizer represented by HSCH2CH2-S-CH2CH2SH, wherein R1 and R1' are H or CH3; R2 is a halogen atom; m and n are 0-4 and m+n is 0-8; X is an alicyclic or aromatic group; and Y is H or CH3.
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